Volume 4

An arrangement of British plants; according to the latest improvements of the Linnaean system. To which is prefixed, An easy introduction to the study of botany. Illustrated by copper plates / by William Withering, M.D. F.R.S. member of the Royal Academy of Sciences at Lisbon; Fellow of the Linnæan Society; honorary member of the Royal Medical Society at Edinburgh, &c.

  • William Withering
Date:
1796
Catalogue details

Licence: Public Domain Mark

Credit: An arrangement of British plants; according to the latest improvements of the Linnaean system. To which is prefixed, An easy introduction to the study of botany. Illustrated by copper plates / by William Withering, M.D. F.R.S. member of the Royal Academy of Sciences at Lisbon; Fellow of the Linnæan Society; honorary member of the Royal Medical Society at Edinburgh, &c. Source: Wellcome Collection.

Provider: This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.

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    f CR VPTOGAMIA. ALGAL Lichen. B. (3) Crust actum with Saucers. Found by the Rev. Hugh Davies on Whinstone rocks in the parish of Whitford, Flintshire. See E. hot. and Trans. Linn, soc. ii. p. 284. [On a wall between Bethws mountain and Gar- thewin, the seat of Robert Wynne, Esq. Denbighshire. Mr. Griffith; on Schistus.j , \ L. Saucers black, very numerous, small, roundish : crust grey, cracked. FI.dan. 468.2. On rocks in Scotland. Dicks, iii. 15. L. Saucers black, sunk in the crust; scolloped at the edge: crust ash-coloured, granulated. HojpnJ;ch.n.2-E.bot.266-Jacq.colM.i3.3-Ha!!tenumt2.6fatp. gi. hist. 47.6, at iii.p. 88-D///. 18. 15. B.-Hoffm. 6.1 -Mich. 32.0nZ.33. Crust when moist greenish-ash-coloured, when dry greyish. Mr. Woodw. Crusty, thick, cracked, warty, grey; whitish when thinner, brittle when dry. Saucers sunk in the crust, hoi- * lowT, lead coloured. Hoffm. L. pertusus. Jacq. coll, on the authority of Dr. Smith. L. ex- cavatus. Relh. p. 420. Walls and dry heaths, Gogmagog Hill, Newmarket Heath. [On walls, frequent, Norfolk and Suffolk. Mr. Woowward.] P. Jan.—Dec. Var. 2. Crust widely expanded, thicker. Relh. On walls. t • »,v l » L. Saucers brown black : crust black and white variegat- ed. Dicks. Dicks.8.10. Crust composed of 2 layers, the under one wrinkled, black, spreading widest; the upper white, even, occupying the central part, cracked into irregular pieces. Saucers numerous, on the pieces of white crust; very pale brown and flat when young and bordered with white; when older darker coloured and swollen into tubercles; when old black and rather confluent. Dicks, iii. 13. Rocks in Scotland, and in Yorkshire. V L, Saucers black, much crowded, flat, border grey : crust black* B 2 J9 0 puncta'tus. scrupo sus* frustulo'sitSi atro-cine'reus Dicks, g.2.